NEW DELHI: Afghan leader Ashraf Ghani and the head of the country's peace process will meet US President Joe Biden at the White House on Friday to discuss US troop withdrawal amid a surge in fighting between Afghan forces and the Taliban across the country.

President Ashraf Ghani and Chairman Abdullah Abdullah's visit will "highlight the enduring partnership between the United States and Afghanistan as the military drawdown continues," White House press secretary Jen Psaki said in a statement.

Biden has ordered the departure of all US forces from Afghanistan by this year's 20th anniversary of the September 11 attacks that triggered the invasion. In moving to end America's longest war, the president has said he believes that no more can be achieved.

In their first face-to-face meeting, Biden will seek to reassure Ghani and Abdullah of US support for the Afghan people including diplomatic, economic and humanitarian assistance, the White House said in a statement. Biden will also repeat his pledge to ensure that the country never becomes a safe haven for terrorist groups.

"The visit by President Ghani and Dr. Abdullah will highlight the enduring partnership between the United States and Afghanistan as the military drawdown continues," the White House said.

As the US military presses ahead to meet the September 11 deadline, the Taliban have fought daily battles with government forces and, at least 30 districts have been seized by the Taliban.

The growing fear and uncertainty about the future have left many Afghans desperate to leave, including thousands of men and women who fear reprisals because they worked with foreign forces.

Worries are also heightened that if the Taliban return to power they will reimpose their harsh version of Islamic law, under which girls were banned from school and women accused of crimes such as adultery were stoned to death.

The Taliban said that they remain committed to peace talks but insisted a "genuine Islamic system" in Afghanistan was the only way to end the war and ensure rights -- including for women.